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8750358 
Journal Article 
Rheological properties of oil-water-coal emulsions based on motul and comma oils 
Makarov, AS; Kosygina, IM; Egurnov, AI; Kruchko, IM 
2021 
2021 
4 
78-83 
Ukrainian 
An increase in the consumption of petroleum products in the transport and energy systems and intensive development of some branches of industry (especially petrochemical industry and oil refining) results in the accumulation of numerous waste in the form of waste oils, oil sludge and other oily liquids. The problem of waste disposal can be solved by using oily liquids as fuel for combustion at thermal power plants in order to produce thermal and electrical energy. To study the rheological characteristics of oil-water-coal emulsions based on anthracite with the solid phase concentration of 40%, an oil phase with the concentration of 49% (motor oils Motul 8100 X-cess 5W-40 and Comma Xtech 5W-30), water (10%) and nonionic surfactant (1%) as an emulsifier-stabilizer. It was found that the rheological characteristics of oil-water-coal emulsions depend not only on the granulometric composition of coal, but also on the viscosity of the dispersed medium (motor oils). Physicochemical and service properties of oil-water-coal systems under consideration allow using them as fuel. Given the availability and relative cheapness of feedstock, this type of fuel can successfully compete with traditional types of liquid fuels. © 2021 Ukrainian State University of Chemical Technology. All rights reserved. 
Anthracite; Motor oil; Oil-water-coal emulsion; Rheological properties; Viscosity